Die printing machine



May 10, 1932.

U. KOHLER DIE PRINTING MACHINE Filed June 13, 1929 2 Sheets-Sheet 1 RMNL.

M. /edh /er nwe/wwe May 10, 1932. u. KOHLER 1,857,918

DIE PRINT-ING MACHINE Filed June 13, 1929 2 Sheets-Sheet 2 Z4 01 :s 4f sr J9 Tg5 a 1 z .s 4 f s 7 a' 9 MLU H FQ- @zza ne! ab afzsfazlglfs/efffas Patented May 10, 1932 UNITED STATES PATENT OFFICE ULRICH-1I KHLER, OF BERN, SWITZERLAND, .ASSIGNOR TO HASLER A.G.` VORMAL TELEGRAPHENWERKSTATTE VON G. HASLER, OF BERN, SWITZERLANDQVA CORPO- RATION F SWITZERLAND Application led .Tune 13, 1929,

This invention relates to a die printing ma chine having dies capable of being displaced in rows in a hollow cylinder longitudinally thereof and of being adjusted transversely thereof. According to the invention the dies constructional example of a die printing inachine required for illustrating the invention. Fig. 2 is a cross-section on line Il-II of Fig. 1. Fig. 3 shows a detail (transverse guide for the dies) in plan view and Figs. 4 to 9 each show diagrainmatically one grouping of the dies.

The horizontal hollow cylinder 1 contains four pairs (or a great-er or less number) o longitudinally extending, flat guiding bars 2 standing on edge, one for each row of dies 3. The hollow cylinder 1 has at its periphery a die plate t provided with two apertures 5 spaced a distance apart, each for one of the dies. The dies, each of which has a head at its end, each has a number at its lower en face, two dies each having the same numerica value.

` shown in the example illustrated in Fig. 1

by the thickness of two dies. the intermediate space between the dies of each group two dies of two further consecutive groups of dies are arranged between them. An exception to this rule is provided by the end groups of each row, in so far that between the dies of the said groups there is only a single die of another group and a blind die (bearing no number). The numerical values of the separate dies are given in Fig. 1. Through this interengagement of the groups of dies the overall length of the hollow cylinder is reduced to a minimum. The dies belonging to the saine group are printed simultaneously and must therefore be jointly introduced into the openings spaced apart For utilizing These two dies forming a group are,

and downwardson the rearend wall 1b DIE` PRINTING MACHINE Serial No. 370,707, and in Switzerland June 27, 19,28. Y

5 in the die plate 4. For this purpose above i the openings 5 between the guiding bars 2 belonging tov each pair is a pair of camsr7 fixed to thefsaid bars,

shown are made'in one piece.A Each die is capable of being displaced or adjusted verti-v cally independently of the other. Four pairs of liatbars 8,'9'which are on edge are provided for guiding the dies transveresely to the bars 2 and at the saine time for displacing them in the longitudinal direction of the latter.` The bars 8 are provided above and capable of sliding upwards and downwards. Both bars 8 and 9 might instead be provided at the top lor the bottom with such lugs. For sliding the rows of dies in the longitudinal direction the pairs of bars 8, 9 are xed at their ends to a lug 11 on a joint adjustable i slide 12,*which extends right through downwardly between the corresponding guiding f bars 2. Each adjustable slide 12 has at its upper'end ten notches 13 and yextends above the die plate 4 between two plates 14 fixed to thecorresponding bars 2. Between the latter a pawl 15 actuated by laspring 16 engages in one of the notches 13 and holds the particular slide in the corresponding position. At

ally on a shaft 17 which is parallel to it an adjusting` finger 18, the unsupported endof which extends into a longitudinal' slot 6 in the hollow cylinder 1. `For enabling the which yin the example below with lugs 10 bent over laterally to- 'wards the corresponding bars 9, between which lugs the dies are guided so-,as to be d the rear end, in Fig. 1Y the right-hand end, of f 1 each adjustable slide there is pivoted later whole row of dies to be displaced by means l of the corresponding linger 18 in the longitudinal direction of the hollow cylinder, the bars 2 must be moved upwards out of the position shown in full lines into the position indicated by dot and dash lines. For this purpose the bars 2 are pivoted at their forward ends about a horizontal shaft at the forward end wall 1a of the hollow cylinder so as to be capable of rocking upwards and downwards and are pivoted at their rear ends to forwardly projecting lugs 19 on a common slide 20 which is capable of sliding upward;

` the dies can -be moved upwards or downwards. In the upper posit-ion the .dies lying below the cams 7 will also be lifted out of the openings 5 with the die plate 4t so that they will not interfere with the displacement of the rows of dies. The displacement or the rows of dies is effected by hand by means of the adjusting linger 18 which projects upwardly outlet the hollow cylinder, the various positions of the slide being determined by a scalegprovided alongside eachslot 6 of the hollow cylinder and corresponding to the notches '13. Duringthis displacement the dies tra-vel with their upper heads which are bevelled Yoff .at both .sides 'successively under the cams 7. l/Vhen the whole set of dies .is moved downwards,'the dies which happen '.to be abevethe .openings 5 will enter the latter and are held in them by thecams .7,so that they cannot move back .again during the printing operation. All the other. dies rest against the wall of .the hollow cylinder and can move upwards.

Figs. 4 to 9 show diagrammatically that the groups'ofdies within one rowof dies .can be farranged'ditlerently with respect -to one another. y n

In Fig. the dies of eachof the tenpgroups are spaced ap-artby the thickness-of one die and between thedies -of each group 4is a die of the next following group. The .numerical values'of the dies are-.given .in the lower row of numerals. In' .the upper .row Vof vnumerals it .will rbe scent-hat for setting successive numerical values .thefdisplacementof the .row oldies ot onevgroup of numerals is diii'erent from the other. The .displacement fromt-he even numerical values to the .odd numerical values lis eiected bya step iofthe size and the thickness ofv ka single die :and from the odd to the even numerical values the steps -are r twice as great.

In the grouping of numerical values ac.- cording to Fig. 5 the successive groups follow lone lanother immediately. Between the dies'oi eachgroup is anyem ty space ofthe thickness of a single die. (B/orrespondingly the entire row of dies .is longer .by the .sum of all the *empty intermediate spaces than .in thearrangement according to .'Fig. 4, which involves a correspondingly longer printing cylinder. The distance between the .marks et the adjusting scale is regular, assis indicatedby the upper row of numerals. The empty yintermediate spaces'may be smaller or larger than the thickness of asingle die.

According to Fig. 6 the ygroups ef'four numerical values overlap one another. Be-l tween the dies of the single groups, with one exception at the rear end of the row of dies, there are no empty intermediate spaces, so that the row of dies is relatively short. The adjusting scale (upper row of numerals) is irregular.

According to Fig. 7 the dies of each group other by one numerical value. Hence inthe numerical groups l-8 there is an intermediate space ofthe thickness 01' one die and in the .numerical groups 0 and 9 and intermediate space of twice the size. is regular.

Fig. Sshows an arrangement of numerical groups, in Vwhich the diesof each groupovei'- la-poneanother by the thickness of four dies. The'ad-justingfscale shows two groups of ve The adjusting scale .marks each. As there are no empty intermediate spaces between the dies'of each group, ythe whole rowoi" dies is short.

said :longitudinal'direction and oi being set transversely thereto and of which a group of at least two dies .-in each frow Vcan be printed, tliediesineaeh group being spaced apart and capable of being set independently of one another, means for longitudinally guiding the rows .of` dies,.at least-two cams fixed vrelativelytothe said longitudinal guiding meansfoi' simultaneously setting thedies to be printed from,.heads at vthe ends of the dies, flatguide bar-s standing on-edgeon either side of-each i'owof dies for guidingthefdies independent lyoi one another and lateral lugson at least one ofthe saidflat guide'bars and -facing the other-baigas .and for the purpose set forth. '1 'i 2. .A die printing machine comprisingahollow icylmder. .rows .of dies arranged in the lsaid cylinder in the longitudinal 4direction thereof :and capable .of being displaced inthe said longitudinal direction and of being `set transversely theretoand of which a group ci" atleast two dies in each row can be printed, the .diesin'each groupbeing spacedapart and capable of beingset independently of one another, sliding members extending llongitudinally vof the Ahollow cylinder, bars for 'longitudinally .guiding lthe rowsfotdies, at least two cams 'fixedwithrespect to theA said longitudinal guidingbars, lugsfon the -said sliding members extending downwards Abetween'the Iare spaced apart by' the thickness ot three dies and 4successive groups overlap-one a-n- '1*' vt ereofand capable oi' being displaced inthe l said longitudinally guiding bars, at guideA bars standing on edge on either side of each row of dies, suspended at either end to the said downwardly extending lugs for guiding the dies independently transversely to the said longitudinal guiding bars and displacing them longitudinally thereof, as and for the purpose set forth.

3. A. die printing machine as claimed in claim Q, and comprising a longitudinal slot in the wall of the hollow cylinder, a scale along the side of the slot and a nger on each sliding member capable of projecting out of the said slot when the guiding bars have been displaced transversely to the longitudinal direction of the hollow cylinder and of being slid longitudinally of the said slot along the said scale for longitudinally displacing the row of dies, as and for the purpose set forth. Y t. A. die printing machine as claimed in claim 2, and comprising a longitudinal slot in the wall of the hollow cylinder, a scale along the side of the slot, a finger on each sliding member capable of projecting out of the said slot when the guiding bars have been displaced transversely to the longitudinal direction of the hollow cylinder and of being slid longitudinally of the said slot along the said scale for longitudinally displacing the row of dies, a plurality of notches on the sliding members corresponding to the divisions of the said scale, a pawl pivoted to the hollow cylinder and a spring for causing the pawl to engage in the said notches, as and for the purpose set forth.

5. A die printing machine ofthe type having a hollow cylinder with rows of dies arranged in the cylinder in the longitudinal direction and capable of being displaced in the said longitudinal direction and of being set transversely thereto, said dies being arranged so that a group of at least two dies in each row can be printed, means for spacing apart the dies of each group so that the dies are l capable of being set independently of one another, means for longitudinally guiding the rows of dies, and at least two cams fixed relatively to the said longitudinal guiding means for simultaneously setting the dies to be printed from.

Signed at Bern, this iirst day of June, 1929.

ULRICH KOHLER. 

